Stefanie is painting her bedroom. she can paint 12 and 2/3 square feet in 2/5 of an hour. how many square feet can she paint in one hour?

31 2/3 .

Step-by-step explanation:

To find how many square feet Stefanie can paint in one hour, divide the number of square feet by the fraction of an hour:

12 2/3 divided by 2/5 = 38/3 divided by 2/5.

=38/3 times 5/2

=190/6

=31 2/3 .

m∠5 + m∠3 = m∠1   is true.

m∠5 + m∠6 = 180 is true

m∠2 +m∠3 = m∠6   is true

m∠2 +m∠3 +m∠5 = 180   is true